CVE-2023-34095

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Summary

CVECVE-2023-34095
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-06-14 17:15:00 UTC
Updated2023-06-26 15:24:00 UTC
Descriptioncpdb-libs provides frontend and backend libraries for the Common Printing Dialog Backends (CPDB) project. In versions 1.0 through 2.0b4, cpdb-libs is vulnerable to buffer overflows via improper use of `scanf(3)`. cpdb-libs uses the `fscanf()` and `scanf()` functions to parse command lines and configuration files, dropping the read string components into fixed-length buffers, but does not limit the length of the strings to be read by `fscanf()` and `scanf()` causing buffer overflows when a string is longer than 1023 characters. A patch for this issue is available at commit f181bd1f14757c2ae0f17cc76dc20421a40f30b7. As all buffers have a length of 1024 characters, the patch limits the maximum string length to be read to 1023 by replacing all occurrences of `%s` with `%1023s` in all calls of the `fscanf()` and `scanf()` functions.

Risk And Classification

Problem Types: CWE-121

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openprinting Cpdb-libs All All All All
Application Openprinting Cpdb-libs 2.0 beta1 All All
Application Openprinting Cpdb-libs 2.0 beta2 All All
Application Openprinting Cpdb-libs 2.0 beta3 All All
Application Openprinting Cpdb-libs 2.0 beta4 All All

References

ReferenceSourceLinkTags
buffer overflows via scanf · Advisory · OpenPrinting/cpdb-libs · GitHub MISC github.com
cpdb-libs/tools/cpdb-text-frontend.c at 85555fba64d34f53a2fce099b0488904cc48ed35 · OpenPrinting/cpdb-libs · GitHub MISC github.com
cpdb-libs/tools/cpdb-text-frontend.c at 85555fba64d34f53a2fce099b0488904cc48ed35 · OpenPrinting/cpdb-libs · GitHub MISC github.com
cpdb-libs/cpdb/cpdb-frontend.c at 85555fba64d34f53a2fce099b0488904cc48ed35 · OpenPrinting/cpdb-libs · GitHub MISC github.com
oss-security - CVE-2023-34095: cpdb-libs: Buffer overflows via scanf MISC www.openwall.com
Merge pull request from GHSA-25j7-9gfc-f46x · OpenPrinting/cpdb-libs@f181bd1 · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 199449 Ubuntu Security Notification for CPDB Vulnerability (USN-6204-1)
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